12-year-old Ramie Grimmer, who was shot dead earlier this week along with her brother Timothy after a seven-hour standoff in a Texas welfare office, reportedly posted to Facebook shortly before being shot, saying that she feared she would not survive.

The children were critically injured after allegedly being shot dead by their mother Rachelle Grimmer, who was reportedly upset at being denied food stamps. Rachelle died of apparent self-inflicted gunshot wounds. The children were rushed to hospital, but Ramie died on Wednesday.

Officials are still trying to work out the precise chain of events that led to the standoff, which ended with the tragic multiple shooting. Rachelle Grimmer had reportedly been applying for food stamps for a number of months, but there are unconfirmed – and conflicting – reports about the reasons she was turned down.